My cow ran away

In the mystical fantasy world, Chen Chang'an was confined to the forbidden library as soon as he arrived,
The sky literally started falling from the very beginning.
Fortunately, at that very moment, his system awakened,
All he needed to do was to read scriptures, and he would keep getting stronger.
Thus, with the library filled with various books, a smile appeared on Chen Chang'an's face.
........
[Ding! You've read Daoist Scriptures and gained a level in 'Heaven Opening Law', currently Level 6.]
[Ding! You've read the Secret Manuscript of Ten Thousand Buddhas, gained a level of Divine Skill 'Six Daos of Reincarnation', currently Level 8.]
[Ding! You've read the Secret Records of Demon Gate, gained a level of Divine Skill 'True Demon That Shakes The World', currently Level 7.]
....
[Ding! Due to the Laws of All Heavens being added to your body, embellished with trembling Literary Qi of the Great Dao, you're rewarded with: Become a Saint on the spot!] 
Years later, as time turned everything old, the world above and the world beneath were already in a desperate turmoil, with immortals descending to the mortal world, and gods and demons performed chaotic dances, making the lives of people unbearable.
Chen Chang'an stepped out of his seclusion one day, looking at the heavenly gods and buddhas scattered across the sky.
“I'm not targeting anyone in particular, but everyone here is garbage!”
That day, he swung his sword and parted the heavens, ever since then, Heaven belongs to Heaven, Earth belongs to Earth!
....!
[PS: Extreme mystical fantasy flow, invincible style! Light readers beware!] 

Become a Saint through Studying! Exposed by my little junior sister!

Time flies. In the blink of an eye, a month has passed since Chen Chang'an and the others returned from the Great Wilderness.


In this month, Chen Chang'an did not go anywhere and stayed on the mountain to instruct Mao Ruxue and the others. He also occasionally went to the Rebirth Hall to teach Gu Yue'er a thing or two.


He had no choice. You know, palm and back of the hand are all flesh, so it would be unfair to favor one over another.


Amidst the tug of war between these two identities, Chen Chang'an spent a challenging yet joyful month.


Then, one day, Chen Chang'an suddenly announced that he was going into seclusion.


He locked himself in the Scripture Repository, refusing meetings with anyone, and even set up a tremendous Formation outside the Repository so that even Li Daoran could not enter.


However, Mao Ruxue was not surprised by Chen Chang'an's seclusion.


Chapter 141: Entering the Great Wilderness Again, Time and Space Confusion, Arriving in Ancient Times!_1